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Home >> Cadillac >> 2002 >> DeVille DTS V8-4.6L VIN 9 >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Timing Components >> Timing Chain Guide >> Service and Repair >> Secondary Camshaft Drive Chain Shoe Replacement - Left

Secondary Camshaft Drive Chain Shoe Replacement - Left

Secondary Camshaft Drive Chain Shoe Replacement- Left

^ Tools Required
- J 44212 Camshaft Holding Tool

Removal Procedure





1. Remove the left secondary camshaft drive chain tensioner.
2. Remove the left camshaft cover.
3. Ensure both camshaft sprocket drive pins are at the top of their rotation.





Caution: Refer to Camshaft Holding Tool Caution in Service Precautions.

4. Install the J 44212 over the camshafts.





5. Use an open end wrench on the hex cast into the camshaft in order to prevent the camshaft from rotating when removing the camshaft sprocket bolt.





6. Remove the left intake camshaft sprocket bolt.
7. Slide the left intake camshaft sprocket off of the camshaft and remove the left secondary drive chain from the camshaft sprocket teeth.





8. Remove the left secondary camshaft drive chain shoe access plug (3) located in the cylinder head. Ensure the O-ring seal remains attached to the access plug.





9. Remove the left secondary camshaft drive chain shoe bolt.





10. Remove the left secondary camshaft drive chain shoe.

Installation Procedure





1. Position the left secondary camshaft drive chain shoe in through the top of the cylinder head.





Notice: Refer to fastener Notice in Service Precautions.

2. Install the left secondary camshaft drive chain shoe bolt.
^ Tighten the secondary camshaft drive chain shoe bolt to 25 Nm (18 ft. lbs.).





3. Install the left secondary camshaft drive chain shoe access plug (3) located in the cylinder head. Ensure the O-ring seal is attached to the access plug.
^ Tighten the secondary camshaft drive chain shoe access plug to 4.5 Nm (40 inch lbs.).





4. Install the left intake camshaft sprocket into the left secondary camshaft drive chain.
5. Install the left intake camshaft sprocket onto the camshaft. The camshaft sprocket notch marked LI (left intake) engages the intake camshaft pin.





6. Use an open end wrench on the hex cast into the camshaft in order to prevent the camshaft from rotating when tightening the camshaft sprocket bolt.





7. Install the left intake camshaft sprocket bolt.
^ Tighten the camshaft sprocket bolt to 120 Nm (89 ft. lbs.).





8. Remove the J 44212 from the camshafts.
9. Install the left camshaft cover.
10. Install the left secondary camshaft drive chain tensioner.
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